Hydroxylamine-O-sulfonic acid

CAS 2950-43-8H2NOSO3HAcids & Bases

Hydroxylamine-O-sulfonic acid (CAS 2950-43-8), with the linear formula H₂NOSO₃H and a molecular weight of 113.09 g/mol, is a chemical reagent. It serves as a versatile compound in various synthetic processes within chemical research and industrial applications. Its acidic nature and reactivity make it a valuable tool for specific chemical transformations.

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Hydroxylamine-O-sulfonic acid (H2NOSO3H) — chemical structure, CAS 2950-43-8; Chemistry, fine chemical supplied by Tech Serve Solutions

AcidsAcids & BasesChemical SynthesisInorganic AcidsSynthetic Reagents

01 /Applications

Reagent in Organic Synthesis

Hydroxylamine-O-sulfonic acid acts as a key reagent in diverse organic synthesis pathways. It is employed for introducing specific functional groups or facilitating complex molecular constructions.

Precursor in Chemical Manufacturing

This compound can function as a precursor in the manufacturing of other speciality chemicals. Its structure allows for participation in reactions leading to more complex or functionalised molecules.

Laboratory Research

Used in academic and industrial research laboratories, Hydroxylamine-O-sulfonic acid supports the development of new chemical methodologies and the exploration of novel synthetic routes.

02 /Properties

Molecular weight	113.09
Linear formula	H2NOSO3H
Assay	≥95.0% (RT)
Storage temperature	2-8°C
Melting point	210 °C (dec.)(lit.)~225 °C (dec.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3260 8 / PGIII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

2950-43-8

MDL number

MFCD00011604

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Hydroxylamine-O-sulfonic acid primarily used for?

Hydroxylamine-O-sulfonic acid is primarily used as a reagent in organic synthesis and as a precursor in chemical manufacturing and laboratory research.

What is the CAS number and chemical formula for Hydroxylamine-O-sulfonic acid?

The CAS number for Hydroxylamine-O-sulfonic acid is 2950-43-8, and its linear chemical formula is H₂NOSO₃H.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Hydroxylamine-O-sulfonic acid with an assay of ≥95.0% (RT). This is a technical or research grade, and TSS does not represent it as USP, BP, or EP grade.

How should Hydroxylamine-O-sulfonic acid be handled safely?

Hydroxylamine-O-sulfonic acid is corrosive and causes severe skin burns and eye damage (H314). Handle with appropriate personal protective equipment, including eyeshields, faceshields, and protective gloves. Ensure adequate ventilation and use a suitable respirator. Store at 2-8°C.

How is Hydroxylamine-O-sulfonic acid packed, shipped, and exported?

Hydroxylamine-O-sulfonic acid is typically packed according to UN 3260, Class 8, Packing Group III specifications for safe transport. Tech Serve Solutions offers global export services for this chemical.